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Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories); ...

Researchers at Rochester Institute of Technology have developed MathDeck, an online search interface that allows anyone to easily create, edit and lookup sophisticated math formulas on the computer.

Ok, there has to be somewhere online that has a nice list of basic math equations, like how to find the area of a circle, how to find the perimeter of a triangle, etc, etc, etc, all that basic ...